1. Fankhauser, F., J. Spahr & H. Bebie. Some aspects of the automation of perimetry. Survey Ophthal. 22, 131–141 (1977).
2. Fankhauser, F. Problems related to the design of automatic perimeters. Docum. Ophthal. 47, 89–138(1979).
3. Gramer, E., G. K. Krieglstein & W. Leydhecker. Die Automatisation der Perimetrie. Zeitschr. prakt. Augenheilk. 1, 5–26 (1980).
4. Schmied, U. Automatic (Octopus) and manual (Goldmann) perimetry in glaucoma: first experiences. First International Meeting on Automated Perimetry, System Octopus. Interzeag AG, Schlieren, Switzerland (1979).
5. Spaeth, G. L., G. Li Suzanne & H. A. Scimeca. Clinical experiences with the use of Octopus automated perimeter in the detection of visual field loss in early glaucoma. First International Meeting on Automated Perimetry, System Octopus. Interzeag AG, Schlieren, Switzerland (1979).